Find the probability of obtaining exactly 3 heads when flipping 4 coins.
1 answer:
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Data:
Questions = 77
Anwered = 22
<span>Missing = 77 - 22 = 55
</span>
Solving:
Questions ________ Time
22 -------------------------- 5
55 -------------------------- t
<span>Multiply cross:
</span>
Questions = 77
Anwered = 22
<span>Missing = 77 - 22 = 55
</span>
Solving:
Questions ________ Time
22 -------------------------- 5
55 -------------------------- t
<span>Multiply cross:
</span>